Results 51 to 60 of about 2,792 (202)

Social innovation, democracy and makerspaces [PDF]

open access: yes, 2017
Social innovation requires a transformation in innovation practices. These transformations should be democratic. At least that is the argument in this paper. Makerspaces are studied as potential sites for democratising innovation activity.
Smith, Adrian
core   +1 more source

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch   +10 more
wiley   +1 more source

Utilidad de la endomicroscopia confocal láser basada en probes (Cellvizio) en gastroenterología

open access: yesRevista Colombiana de Gastroenterología, 2016
La endomicroscopia confocal láser basada en probes (Cellvizio de Mauna Kea Technologies, París) es una nueva tecnología que permite, durante cualquier procedimiento endoscópico, realizar análisis histológicos en tiempo real (biopsia óptica ...
Elías Alfonso Forero Piñeros   +4 more
doaj   +1 more source

The MOOC phenomenon: the current situation and an alternative business model [PDF]

open access: yes, 2014
Massive Open Online Courses (MOOCs) are a recent phenomenon that has achieved great media impact in the world of e-learning since the most prestigious US universities, and subsequently many others, became involved in them.
González-González, Inés   +1 more
core  

Gram‐Scale Production of Iron Oxide Rubik‐Cube Nanoparticles: New Tools for the Clinical Translation of Magnetic Hyperthermia and Magnetic Particle Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo   +12 more
wiley   +1 more source

Los pueblos y nacionalidades de Ecuador frente al estractivismo [PDF]

open access: yes, 2012
Buenas tardes a todos los asistentes a este auditorio. Para los pueblos indígenas, cuando nos toca venir a estos espacios de foro y debates tenemos que pensar ¿y ahora qué nos toca decir? Porque a veces nos cuestionan.
Cholango, Humberto
core  

Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne   +17 more
wiley   +1 more source

Rediseño de dos asignaturas incorporando el juego de rol y Twitter para fomentar la motivación de los estudiantes [PDF]

open access: yes, 2015
La incorporación de estudiantes de la generación digital a las aulas universitarias está forzando un cambio en el modo de entender la enseñanza y el aprendizaje hacia prácticas más abiertas y participativas.
Noguera Fructuoso, Ingrid
core  

A Mechanistic Blueprint for Fast, High‐Yield Green Scintillators Using Conjugated Polymer–Nanocrystal Composites

open access: yesAdvanced Functional Materials, EarlyView.
Conjugated polymer–nanocrystal composites are investigated to develop fast, high‐yield green scintillators. The polymer F8BT enables efficient, ultrafast emission, while blends with non‐emitting HfO2 nanocrystals and luminescent CdZnS/ZnS quantum dots reveal distinct sensitization mechanisms.
Chenger Wang   +13 more
wiley   +1 more source

Efecto de la adición de furfural sobre la capacidad adhesiva de la proteína de soya

open access: yesRevista Mexicana de Ciencias Forestales, 2018
Adhesivos para madera como la urea-formaldehído y el fenol-formaldehído son apreciados por su eficacia y el segundo ofrece buena resistencia para usos en ambientes húmedos. Su inconveniente son las emisiones de formaldehído, que en estudios recientes
Fernando Hernández-Castorena   +6 more
doaj   +1 more source

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